/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:57:08,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:57:08,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:57:08,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:57:08,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:57:08,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:57:08,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:57:08,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:57:08,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:57:08,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:57:08,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:57:08,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:57:08,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:57:08,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:57:08,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:57:08,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:57:08,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:57:08,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:57:08,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:57:08,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:57:08,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:57:08,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:57:08,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:57:08,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:57:08,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:57:08,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:57:08,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:57:08,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:57:08,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:57:08,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:57:08,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:57:08,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:57:08,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:57:08,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:57:08,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:57:08,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:57:08,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:57:08,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:57:08,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:57:08,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:57:08,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:57:08,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 11:57:08,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:57:08,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:57:08,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:57:08,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:57:08,714 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:57:08,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:57:08,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:57:08,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:57:08,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:57:08,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:57:08,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:57:08,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:57:08,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:57:08,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:57:08,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:57:08,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:57:08,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:57:08,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:57:08,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:57:08,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:57:08,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:57:08,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:57:08,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:57:08,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:57:08,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:57:08,718 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:57:08,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:57:08,718 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 11:57:08,719 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:57:08,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:57:08,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:57:08,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:57:09,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:57:09,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:57:09,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:57:09,013 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:57:09,015 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i [2020-04-18 11:57:09,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98009c2f5/8113abf398e5458aa5fb0fc487a86369/FLAG75ac1b939 [2020-04-18 11:57:09,654 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:57:09,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/14_spin2003.i [2020-04-18 11:57:09,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98009c2f5/8113abf398e5458aa5fb0fc487a86369/FLAG75ac1b939 [2020-04-18 11:57:09,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98009c2f5/8113abf398e5458aa5fb0fc487a86369 [2020-04-18 11:57:09,924 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:57:09,941 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:57:09,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:57:09,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:57:09,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:57:09,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:57:09" (1/1) ... [2020-04-18 11:57:09,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21221a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:09, skipping insertion in model container [2020-04-18 11:57:09,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:57:09" (1/1) ... [2020-04-18 11:57:09,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:57:10,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:57:10,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:57:10,475 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:57:10,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:57:10,587 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:57:10,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10 WrapperNode [2020-04-18 11:57:10,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:57:10,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:57:10,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:57:10,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:57:10,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:57:10,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:57:10,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:57:10,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:57:10,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... [2020-04-18 11:57:10,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:57:10,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:57:10,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:57:10,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:57:10,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:57:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 11:57:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 11:57:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:57:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:57:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:57:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:57:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:57:10,721 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:57:11,183 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:57:11,183 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-04-18 11:57:11,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:57:11 BoogieIcfgContainer [2020-04-18 11:57:11,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:57:11,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:57:11,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:57:11,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:57:11,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:57:09" (1/3) ... [2020-04-18 11:57:11,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590884e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:57:11, skipping insertion in model container [2020-04-18 11:57:11,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:57:10" (2/3) ... [2020-04-18 11:57:11,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590884e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:57:11, skipping insertion in model container [2020-04-18 11:57:11,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:57:11" (3/3) ... [2020-04-18 11:57:11,196 INFO L109 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2020-04-18 11:57:11,206 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:57:11,207 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:57:11,214 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 11:57:11,216 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:57:11,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,236 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,236 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,237 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,237 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,238 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,238 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,239 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,239 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,242 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,243 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,243 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,243 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,243 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,243 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:11,262 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 11:57:11,285 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:57:11,286 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:57:11,286 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:57:11,286 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:57:11,286 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:57:11,287 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:57:11,287 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:57:11,287 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:57:11,301 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 30 transitions, 65 flow [2020-04-18 11:57:11,303 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 65 flow [2020-04-18 11:57:11,342 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2020-04-18 11:57:11,342 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:57:11,347 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 3/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2020-04-18 11:57:11,348 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 65 flow [2020-04-18 11:57:11,359 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2020-04-18 11:57:11,359 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:57:11,360 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 3/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2020-04-18 11:57:11,361 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 220 [2020-04-18 11:57:11,362 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:57:11,976 INFO L206 etLargeBlockEncoding]: Checked pairs total: 164 [2020-04-18 11:57:11,977 INFO L214 etLargeBlockEncoding]: Total number of compositions: 28 [2020-04-18 11:57:11,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-04-18 11:57:11,987 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-04-18 11:57:11,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-04-18 11:57:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 11:57:11,995 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:11,995 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-18 11:57:11,996 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 11:57:12,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:12,001 INFO L82 PathProgramCache]: Analyzing trace with hash 6233835, now seen corresponding path program 1 times [2020-04-18 11:57:12,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:12,009 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [467691853] [2020-04-18 11:57:12,024 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:12,036 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 11:57:12,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-04-18 11:57:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 11:57:12,038 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:12,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:12,039 INFO L82 PathProgramCache]: Analyzing trace with hash 6233835, now seen corresponding path program 2 times [2020-04-18 11:57:12,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:12,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888796616] [2020-04-18 11:57:12,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:57:12,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888796616] [2020-04-18 11:57:12,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:12,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 11:57:12,197 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:12,198 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:12,199 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 11:57:12,199 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:12,202 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:57:12,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:57:12,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:57:12,209 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 2 states. [2020-04-18 11:57:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:12,213 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-04-18 11:57:12,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-04-18 11:57:12,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:57:12,214 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [467691853] [2020-04-18 11:57:12,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:57:12,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 11:57:12,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [467691853] [2020-04-18 11:57:12,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 11:57:12,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:57:12,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 11:57:12,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:57:12,223 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-04-18 11:57:12,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:12,224 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-04-18 11:57:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 11:57:12,226 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-04-18 11:57:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:57:12,235 INFO L225 Difference]: With dead ends: 11 [2020-04-18 11:57:12,235 INFO L226 Difference]: Without dead ends: 11 [2020-04-18 11:57:12,237 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 11:57:12,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-04-18 11:57:12,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-04-18 11:57:12,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-04-18 11:57:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-04-18 11:57:12,269 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-04-18 11:57:12,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:57:12,270 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-04-18 11:57:12,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 11:57:12,270 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-04-18 11:57:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:57:12,270 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:12,270 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-04-18 11:57:12,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 11:57:12,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:12,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1695702247, now seen corresponding path program 1 times [2020-04-18 11:57:12,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:12,272 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2117250546] [2020-04-18 11:57:12,272 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:12,273 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:57:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 11:57:12,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:57:12,275 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:12,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:12,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1695702247, now seen corresponding path program 2 times [2020-04-18 11:57:12,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:12,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860762896] [2020-04-18 11:57:12,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:12,338 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:57:12,339 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:57:12,339 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:57:12,340 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 11:57:12,341 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 11:57:12,347 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,347 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,347 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,348 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,348 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,348 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,348 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,349 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,349 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,349 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,350 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,350 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,350 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,350 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,350 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,350 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,351 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,352 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,352 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,352 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,353 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,353 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,355 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,356 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,356 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:12,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 11:57:12,365 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:57:12,365 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:57:12,366 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:57:12,366 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:57:12,366 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:57:12,366 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:57:12,366 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:57:12,366 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:57:12,371 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 42 transitions, 96 flow [2020-04-18 11:57:12,371 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 96 flow [2020-04-18 11:57:12,392 INFO L129 PetriNetUnfolder]: 5/59 cut-off events. [2020-04-18 11:57:12,392 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-04-18 11:57:12,393 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 5/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2020-04-18 11:57:12,395 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 96 flow [2020-04-18 11:57:12,421 INFO L129 PetriNetUnfolder]: 5/59 cut-off events. [2020-04-18 11:57:12,421 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-04-18 11:57:12,423 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 5/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2020-04-18 11:57:12,426 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 704 [2020-04-18 11:57:12,426 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:57:13,002 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1631 [2020-04-18 11:57:13,002 INFO L214 etLargeBlockEncoding]: Total number of compositions: 24 [2020-04-18 11:57:13,002 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 54 flow [2020-04-18 11:57:13,020 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 312 states. [2020-04-18 11:57:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-04-18 11:57:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:57:13,022 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:13,022 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:57:13,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:57:13,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:13,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1851878912, now seen corresponding path program 1 times [2020-04-18 11:57:13,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:13,023 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1935613705] [2020-04-18 11:57:13,024 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:13,025 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:57:13,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 11:57:13,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:57:13,026 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:13,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1851878912, now seen corresponding path program 2 times [2020-04-18 11:57:13,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:13,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408713251] [2020-04-18 11:57:13,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:57:13,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408713251] [2020-04-18 11:57:13,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:13,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:57:13,083 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:13,084 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:13,085 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:57:13,085 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:13,090 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:57:13,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:13,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:13,091 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 11:57:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:13,098 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 11:57:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 11:57:13,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:57:13,099 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1935613705] [2020-04-18 11:57:13,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:57:13,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:57:13,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1935613705] [2020-04-18 11:57:13,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:57:13,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:57:13,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:13,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:13,100 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-04-18 11:57:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:13,141 INFO L93 Difference]: Finished difference Result 237 states and 526 transitions. [2020-04-18 11:57:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:57:13,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 11:57:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:57:13,149 INFO L225 Difference]: With dead ends: 237 [2020-04-18 11:57:13,149 INFO L226 Difference]: Without dead ends: 237 [2020-04-18 11:57:13,150 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:13,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-04-18 11:57:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 221. [2020-04-18 11:57:13,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-04-18 11:57:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 490 transitions. [2020-04-18 11:57:13,187 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 490 transitions. Word has length 7 [2020-04-18 11:57:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:57:13,187 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 490 transitions. [2020-04-18 11:57:13,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:57:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 490 transitions. [2020-04-18 11:57:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:57:13,188 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:13,188 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-04-18 11:57:13,189 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:57:13,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:13,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1235018698, now seen corresponding path program 1 times [2020-04-18 11:57:13,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:13,190 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1621885164] [2020-04-18 11:57:13,193 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:13,194 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 11:57:13,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 11:57:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:57:13,195 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:13,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1235018698, now seen corresponding path program 2 times [2020-04-18 11:57:13,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:13,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099706834] [2020-04-18 11:57:13,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:13,265 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:57:13,265 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:57:13,265 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:57:13,266 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 11:57:13,268 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 11:57:13,275 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,276 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,276 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,276 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,276 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,276 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,277 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,277 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,277 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,277 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,278 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,279 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,280 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,280 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,280 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,280 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,281 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,281 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,281 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,281 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,282 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,285 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,285 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,285 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,302 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,302 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:13,305 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 11:57:13,305 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:57:13,305 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:57:13,305 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:57:13,306 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:57:13,306 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:57:13,306 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:57:13,306 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:57:13,306 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:57:13,308 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 54 transitions, 129 flow [2020-04-18 11:57:13,308 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 129 flow [2020-04-18 11:57:13,338 INFO L129 PetriNetUnfolder]: 7/80 cut-off events. [2020-04-18 11:57:13,338 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-04-18 11:57:13,341 INFO L80 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 80 events. 7/80 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 180 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2020-04-18 11:57:13,343 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 129 flow [2020-04-18 11:57:13,355 INFO L129 PetriNetUnfolder]: 7/80 cut-off events. [2020-04-18 11:57:13,355 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-04-18 11:57:13,356 INFO L80 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 80 events. 7/80 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 180 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2020-04-18 11:57:13,358 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1452 [2020-04-18 11:57:13,358 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:57:13,911 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5364 [2020-04-18 11:57:13,911 INFO L214 etLargeBlockEncoding]: Total number of compositions: 31 [2020-04-18 11:57:13,911 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 32 transitions, 85 flow [2020-04-18 11:57:14,058 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2852 states. [2020-04-18 11:57:14,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states. [2020-04-18 11:57:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:57:14,059 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:14,059 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:57:14,060 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:57:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1544070334, now seen corresponding path program 1 times [2020-04-18 11:57:14,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:14,061 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [265579577] [2020-04-18 11:57:14,061 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:14,062 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:57:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 11:57:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:57:14,062 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1544070334, now seen corresponding path program 2 times [2020-04-18 11:57:14,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:14,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328345930] [2020-04-18 11:57:14,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:57:14,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328345930] [2020-04-18 11:57:14,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:14,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:57:14,108 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:14,109 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:14,109 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:57:14,110 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:14,114 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:57:14,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:14,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:14,115 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 11:57:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:14,119 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 11:57:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 11:57:14,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:57:14,120 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [265579577] [2020-04-18 11:57:14,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:57:14,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:57:14,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [265579577] [2020-04-18 11:57:14,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:57:14,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:57:14,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:14,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:14,123 INFO L87 Difference]: Start difference. First operand 2852 states. Second operand 3 states. [2020-04-18 11:57:14,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:14,226 INFO L93 Difference]: Finished difference Result 2451 states and 7044 transitions. [2020-04-18 11:57:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:57:14,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 11:57:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:57:14,248 INFO L225 Difference]: With dead ends: 2451 [2020-04-18 11:57:14,249 INFO L226 Difference]: Without dead ends: 2451 [2020-04-18 11:57:14,249 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2020-04-18 11:57:14,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 2175. [2020-04-18 11:57:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2020-04-18 11:57:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 6276 transitions. [2020-04-18 11:57:14,389 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 6276 transitions. Word has length 7 [2020-04-18 11:57:14,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:57:14,389 INFO L479 AbstractCegarLoop]: Abstraction has 2175 states and 6276 transitions. [2020-04-18 11:57:14,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:57:14,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 6276 transitions. [2020-04-18 11:57:14,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:14,393 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:14,393 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:57:14,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:57:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,394 INFO L82 PathProgramCache]: Analyzing trace with hash 783712110, now seen corresponding path program 1 times [2020-04-18 11:57:14,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:14,396 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1327588645] [2020-04-18 11:57:14,396 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:14,398 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 52 transitions. [2020-04-18 11:57:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 11:57:14,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:14,407 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:14,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,407 INFO L82 PathProgramCache]: Analyzing trace with hash 784261710, now seen corresponding path program 2 times [2020-04-18 11:57:14,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:14,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166217301] [2020-04-18 11:57:14,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 11:57:14,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166217301] [2020-04-18 11:57:14,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:14,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:57:14,483 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:14,484 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:14,488 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 47 transitions. [2020-04-18 11:57:14,488 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:14,501 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:57:14,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:14,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:14,503 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-04-18 11:57:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:14,514 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-04-18 11:57:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-04-18 11:57:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:14,515 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:57:14,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,516 INFO L82 PathProgramCache]: Analyzing trace with hash 783712110, now seen corresponding path program 3 times [2020-04-18 11:57:14,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:14,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201801601] [2020-04-18 11:57:14,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 11:57:14,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201801601] [2020-04-18 11:57:14,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:14,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:57:14,593 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:14,594 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:14,595 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 36 transitions. [2020-04-18 11:57:14,596 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:14,610 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:57:14,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:14,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:57:14,611 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. Second operand 3 states. [2020-04-18 11:57:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:14,617 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-04-18 11:57:14,618 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-04-18 11:57:14,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:57:14,618 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1327588645] [2020-04-18 11:57:14,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:57:14,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 11:57:14,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1327588645] [2020-04-18 11:57:14,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:57:14,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:57:14,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:57:14,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:57:14,620 INFO L87 Difference]: Start difference. First operand 2175 states and 6276 transitions. Second operand 4 states. [2020-04-18 11:57:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:14,675 INFO L93 Difference]: Finished difference Result 305 states and 564 transitions. [2020-04-18 11:57:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 11:57:14,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 11:57:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:57:14,678 INFO L225 Difference]: With dead ends: 305 [2020-04-18 11:57:14,678 INFO L226 Difference]: Without dead ends: 305 [2020-04-18 11:57:14,679 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:57:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-04-18 11:57:14,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2020-04-18 11:57:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-04-18 11:57:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 564 transitions. [2020-04-18 11:57:14,688 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 564 transitions. Word has length 12 [2020-04-18 11:57:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:57:14,688 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 564 transitions. [2020-04-18 11:57:14,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:57:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 564 transitions. [2020-04-18 11:57:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:14,690 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:14,690 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-04-18 11:57:14,690 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:57:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,691 INFO L82 PathProgramCache]: Analyzing trace with hash -452058197, now seen corresponding path program 1 times [2020-04-18 11:57:14,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:14,699 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1880146896] [2020-04-18 11:57:14,700 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:14,701 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-04-18 11:57:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-04-18 11:57:14,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:14,701 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:14,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:14,702 INFO L82 PathProgramCache]: Analyzing trace with hash -452058197, now seen corresponding path program 2 times [2020-04-18 11:57:14,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:14,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828646100] [2020-04-18 11:57:14,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:14,755 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:57:14,756 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:57:14,756 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:57:14,756 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 11:57:14,757 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 11:57:14,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,773 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,773 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,788 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,789 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,789 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,790 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,791 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,791 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,791 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,791 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,793 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,794 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,795 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,795 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,795 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,797 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,798 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,798 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,798 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,798 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,798 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,799 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,800 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,800 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,800 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,800 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:14,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 11:57:14,802 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:57:14,802 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:57:14,802 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:57:14,802 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:57:14,803 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:57:14,803 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:57:14,803 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:57:14,803 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:57:14,805 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 66 transitions, 164 flow [2020-04-18 11:57:14,806 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 70 places, 66 transitions, 164 flow [2020-04-18 11:57:14,825 INFO L129 PetriNetUnfolder]: 9/101 cut-off events. [2020-04-18 11:57:14,826 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-04-18 11:57:14,827 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 101 events. 9/101 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2020-04-18 11:57:14,830 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 70 places, 66 transitions, 164 flow [2020-04-18 11:57:14,841 INFO L129 PetriNetUnfolder]: 9/101 cut-off events. [2020-04-18 11:57:14,841 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-04-18 11:57:14,843 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 101 events. 9/101 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2020-04-18 11:57:14,846 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2464 [2020-04-18 11:57:14,846 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:57:15,517 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9936 [2020-04-18 11:57:15,517 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2020-04-18 11:57:15,518 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 41 transitions, 114 flow [2020-04-18 11:57:18,032 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22820 states. [2020-04-18 11:57:18,032 INFO L276 IsEmpty]: Start isEmpty. Operand 22820 states. [2020-04-18 11:57:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:57:18,032 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:18,032 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:57:18,033 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 11:57:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:18,033 INFO L82 PathProgramCache]: Analyzing trace with hash 660011034, now seen corresponding path program 1 times [2020-04-18 11:57:18,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:18,033 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [724912848] [2020-04-18 11:57:18,034 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:18,034 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:57:18,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 11:57:18,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:57:18,035 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:18,035 INFO L82 PathProgramCache]: Analyzing trace with hash 660011034, now seen corresponding path program 2 times [2020-04-18 11:57:18,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:18,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708570947] [2020-04-18 11:57:18,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:57:18,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708570947] [2020-04-18 11:57:18,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:18,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:57:18,068 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:18,069 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:18,069 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:57:18,070 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:18,072 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:57:18,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:18,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:18,073 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 11:57:18,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:18,076 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 11:57:18,076 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 11:57:18,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:57:18,077 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [724912848] [2020-04-18 11:57:18,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:57:18,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:57:18,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [724912848] [2020-04-18 11:57:18,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:57:18,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:57:18,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:18,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:18,078 INFO L87 Difference]: Start difference. First operand 22820 states. Second operand 3 states. [2020-04-18 11:57:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:18,486 INFO L93 Difference]: Finished difference Result 22615 states and 81001 transitions. [2020-04-18 11:57:18,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:57:18,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 11:57:18,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:57:18,635 INFO L225 Difference]: With dead ends: 22615 [2020-04-18 11:57:18,635 INFO L226 Difference]: Without dead ends: 22615 [2020-04-18 11:57:18,635 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22615 states. [2020-04-18 11:57:20,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22615 to 19461. [2020-04-18 11:57:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19461 states. [2020-04-18 11:57:20,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19461 states to 19461 states and 70528 transitions. [2020-04-18 11:57:20,480 INFO L78 Accepts]: Start accepts. Automaton has 19461 states and 70528 transitions. Word has length 7 [2020-04-18 11:57:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:57:20,480 INFO L479 AbstractCegarLoop]: Abstraction has 19461 states and 70528 transitions. [2020-04-18 11:57:20,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:57:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 19461 states and 70528 transitions. [2020-04-18 11:57:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:20,481 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:20,481 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:57:20,481 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 11:57:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:20,482 INFO L82 PathProgramCache]: Analyzing trace with hash -143047503, now seen corresponding path program 1 times [2020-04-18 11:57:20,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:20,482 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [106306972] [2020-04-18 11:57:20,483 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:20,484 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 52 transitions. [2020-04-18 11:57:20,484 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 11:57:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:20,485 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:20,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:20,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1905724587, now seen corresponding path program 2 times [2020-04-18 11:57:20,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:20,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569256659] [2020-04-18 11:57:20,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:57:20,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569256659] [2020-04-18 11:57:20,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:20,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:57:20,511 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:20,511 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:20,515 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 47 transitions. [2020-04-18 11:57:20,516 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:20,519 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:57:20,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:20,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:57:20,520 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-04-18 11:57:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:20,526 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-04-18 11:57:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-04-18 11:57:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:57:20,527 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:57:20,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:20,527 INFO L82 PathProgramCache]: Analyzing trace with hash -143047503, now seen corresponding path program 3 times [2020-04-18 11:57:20,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:20,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283976342] [2020-04-18 11:57:20,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:57:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:57:20,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283976342] [2020-04-18 11:57:20,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:57:20,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:57:20,557 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:57:20,558 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:20,559 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 36 transitions. [2020-04-18 11:57:20,559 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:57:20,564 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:57:20,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:57:20,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:57:20,565 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. Second operand 3 states. [2020-04-18 11:57:20,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:20,570 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-04-18 11:57:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-04-18 11:57:20,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:57:20,570 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [106306972] [2020-04-18 11:57:20,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:57:20,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 11:57:20,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [106306972] [2020-04-18 11:57:20,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:57:20,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:57:20,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:57:20,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:57:20,572 INFO L87 Difference]: Start difference. First operand 19461 states and 70528 transitions. Second operand 4 states. [2020-04-18 11:57:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:57:20,619 INFO L93 Difference]: Finished difference Result 825 states and 1576 transitions. [2020-04-18 11:57:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 11:57:20,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 11:57:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:57:20,622 INFO L225 Difference]: With dead ends: 825 [2020-04-18 11:57:20,622 INFO L226 Difference]: Without dead ends: 825 [2020-04-18 11:57:20,623 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:57:20,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-04-18 11:57:20,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2020-04-18 11:57:20,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-04-18 11:57:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1576 transitions. [2020-04-18 11:57:20,644 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1576 transitions. Word has length 12 [2020-04-18 11:57:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:57:20,645 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 1576 transitions. [2020-04-18 11:57:20,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:57:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1576 transitions. [2020-04-18 11:57:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 11:57:20,645 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:57:20,646 INFO L425 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-04-18 11:57:20,646 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 11:57:20,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:20,646 INFO L82 PathProgramCache]: Analyzing trace with hash -169537951, now seen corresponding path program 1 times [2020-04-18 11:57:20,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:57:20,647 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1346689637] [2020-04-18 11:57:20,647 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:57:20,648 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-04-18 11:57:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 11:57:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 11:57:20,649 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:57:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:57:20,649 INFO L82 PathProgramCache]: Analyzing trace with hash -169537951, now seen corresponding path program 2 times [2020-04-18 11:57:20,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:57:20,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268969033] [2020-04-18 11:57:20,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:57:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:57:20,672 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:57:20,673 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:57:20,673 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:57:20,673 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 11:57:20,674 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-04-18 11:57:20,682 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,682 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,682 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,682 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,683 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,683 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,683 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,683 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,683 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,684 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,684 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,684 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,684 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,684 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,685 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,685 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,685 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,685 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,685 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,686 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,686 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,686 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,686 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,686 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,686 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,687 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,687 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,687 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,687 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,687 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,687 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,688 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,688 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,688 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,688 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,688 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,688 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,689 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,689 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,690 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,691 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,691 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,691 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,691 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,692 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,692 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,694 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,694 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,694 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,695 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,695 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,695 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,697 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,697 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,697 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,697 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,697 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,698 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,699 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,699 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,699 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,700 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,700 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,700 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,701 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,702 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,702 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,702 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,702 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,703 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:57:20,704 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 11:57:20,705 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:57:20,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:57:20,705 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:57:20,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:57:20,705 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:57:20,706 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:57:20,706 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:57:20,706 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:57:20,707 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 78 transitions, 201 flow [2020-04-18 11:57:20,707 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 201 flow [2020-04-18 11:57:20,722 INFO L129 PetriNetUnfolder]: 11/122 cut-off events. [2020-04-18 11:57:20,722 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-04-18 11:57:20,724 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 122 events. 11/122 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 117. Up to 12 conditions per place. [2020-04-18 11:57:20,731 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 201 flow [2020-04-18 11:57:20,745 INFO L129 PetriNetUnfolder]: 11/122 cut-off events. [2020-04-18 11:57:20,745 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-04-18 11:57:20,748 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 122 events. 11/122 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 117. Up to 12 conditions per place. [2020-04-18 11:57:20,753 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3740 [2020-04-18 11:57:20,753 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:57:21,625 INFO L206 etLargeBlockEncoding]: Checked pairs total: 11500 [2020-04-18 11:57:21,625 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2020-04-18 11:57:21,625 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 42 transitions, 129 flow [2020-04-18 11:58:02,012 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 108616 states. [2020-04-18 11:58:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 108616 states. [2020-04-18 11:58:02,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:58:02,012 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:58:02,012 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:58:02,013 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:58:02,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:02,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1182900639, now seen corresponding path program 1 times [2020-04-18 11:58:02,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:58:02,014 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [75629265] [2020-04-18 11:58:02,014 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:58:02,014 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:58:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 11:58:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:58:02,015 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:58:02,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:02,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1182900639, now seen corresponding path program 2 times [2020-04-18 11:58:02,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:58:02,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443480924] [2020-04-18 11:58:02,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:58:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:58:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:58:02,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443480924] [2020-04-18 11:58:02,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:58:02,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:58:02,045 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:58:02,046 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:58:02,046 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-04-18 11:58:02,046 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:58:02,049 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:58:02,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:58:02,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:58:02,049 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-04-18 11:58:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:58:02,051 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-04-18 11:58:02,051 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-04-18 11:58:02,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:58:02,052 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [75629265] [2020-04-18 11:58:02,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:58:02,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:58:02,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [75629265] [2020-04-18 11:58:02,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:58:02,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:58:02,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:58:02,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:58:02,053 INFO L87 Difference]: Start difference. First operand 108616 states. Second operand 3 states. [2020-04-18 11:58:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:58:02,873 INFO L93 Difference]: Finished difference Result 124813 states and 561557 transitions. [2020-04-18 11:58:02,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:58:02,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-18 11:58:02,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:58:03,550 INFO L225 Difference]: With dead ends: 124813 [2020-04-18 11:58:03,550 INFO L226 Difference]: Without dead ends: 124813 [2020-04-18 11:58:03,550 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:58:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124813 states. [2020-04-18 11:58:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124813 to 105525. [2020-04-18 11:58:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105525 states. [2020-04-18 11:58:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105525 states to 105525 states and 482027 transitions. [2020-04-18 11:58:12,836 INFO L78 Accepts]: Start accepts. Automaton has 105525 states and 482027 transitions. Word has length 7 [2020-04-18 11:58:12,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:58:12,836 INFO L479 AbstractCegarLoop]: Abstraction has 105525 states and 482027 transitions. [2020-04-18 11:58:12,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:58:12,836 INFO L276 IsEmpty]: Start isEmpty. Operand 105525 states and 482027 transitions. [2020-04-18 11:58:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:58:12,837 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:58:12,837 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:58:12,837 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:58:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:12,837 INFO L82 PathProgramCache]: Analyzing trace with hash 882877450, now seen corresponding path program 1 times [2020-04-18 11:58:12,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:58:12,838 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [251019386] [2020-04-18 11:58:12,838 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:58:12,838 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-04-18 11:58:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-04-18 11:58:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:58:12,839 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:58:12,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:12,839 INFO L82 PathProgramCache]: Analyzing trace with hash 882871660, now seen corresponding path program 2 times [2020-04-18 11:58:12,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:58:12,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817894912] [2020-04-18 11:58:12,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:58:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:58:16,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 11:58:16,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817894912] [2020-04-18 11:58:16,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:58:16,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:58:16,667 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:58:16,667 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:58:16,669 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 23 transitions. [2020-04-18 11:58:16,669 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:58:16,672 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:58:16,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:58:16,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:58:16,673 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2020-04-18 11:58:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:58:16,678 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2020-04-18 11:58:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-04-18 11:58:16,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 11:58:16,679 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:58:16,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:16,680 INFO L82 PathProgramCache]: Analyzing trace with hash 882877450, now seen corresponding path program 3 times [2020-04-18 11:58:16,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:58:16,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924430371] [2020-04-18 11:58:16,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:58:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:58:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 11:58:16,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924430371] [2020-04-18 11:58:16,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:58:16,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:58:16,710 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:58:16,711 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:58:16,712 INFO L259 McrAutomatonBuilder]: Finished intersection with 17 states and 18 transitions. [2020-04-18 11:58:16,712 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:58:16,717 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:58:16,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:58:16,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:58:16,718 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 3 states. [2020-04-18 11:58:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:58:16,723 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2020-04-18 11:58:16,723 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-04-18 11:58:16,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:58:16,723 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [251019386] [2020-04-18 11:58:16,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:58:16,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 11:58:16,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [251019386] [2020-04-18 11:58:16,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:58:16,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:58:16,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:58:16,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:58:16,725 INFO L87 Difference]: Start difference. First operand 105525 states and 482027 transitions. Second operand 4 states. [2020-04-18 11:58:16,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:58:16,795 INFO L93 Difference]: Finished difference Result 2089 states and 4072 transitions. [2020-04-18 11:58:16,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 11:58:16,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 11:58:16,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:58:16,801 INFO L225 Difference]: With dead ends: 2089 [2020-04-18 11:58:16,801 INFO L226 Difference]: Without dead ends: 2089 [2020-04-18 11:58:16,802 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:58:16,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-04-18 11:58:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-04-18 11:58:16,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-04-18 11:58:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 4072 transitions. [2020-04-18 11:58:16,848 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 4072 transitions. Word has length 12 [2020-04-18 11:58:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:58:16,848 INFO L479 AbstractCegarLoop]: Abstraction has 2089 states and 4072 transitions. [2020-04-18 11:58:16,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:58:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 4072 transitions. [2020-04-18 11:58:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 11:58:16,850 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:58:16,850 INFO L425 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:58:16,850 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:58:16,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:16,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1859565702, now seen corresponding path program 1 times [2020-04-18 11:58:16,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:58:16,852 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [69043740] [2020-04-18 11:58:16,853 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:58:16,854 INFO L259 McrAutomatonBuilder]: Finished intersection with 19 states and 18 transitions. [2020-04-18 11:58:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-04-18 11:58:16,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 11:58:16,854 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:58:16,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:58:16,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1859565702, now seen corresponding path program 2 times [2020-04-18 11:58:16,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:58:16,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006412902] [2020-04-18 11:58:16,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:58:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:58:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 11:58:16,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 11:58:16,906 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 11:58:16,907 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 11:58:16,907 WARN L363 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 11:58:16,908 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-04-18 11:58:16,920 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,921 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,921 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,921 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,921 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,922 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,922 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,922 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,923 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,923 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,923 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,924 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,924 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,924 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,924 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,924 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,925 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,925 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,925 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,925 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,927 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,928 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,928 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,928 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,928 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,929 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,929 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,930 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,930 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,931 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,931 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,931 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,931 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,931 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,931 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,932 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,933 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,933 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,933 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,933 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,933 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,933 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,934 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,934 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,934 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,936 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,936 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,936 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,937 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,938 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,938 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,938 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,939 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,939 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,941 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,941 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,941 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,942 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,942 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,942 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,944 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,944 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,944 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,944 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,945 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,945 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,947 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:58:16,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-04-18 11:58:16,948 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:58:16,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:58:16,948 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:58:16,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:58:16,949 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:58:16,949 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:58:16,949 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:58:16,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:58:16,951 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 90 transitions, 240 flow [2020-04-18 11:58:16,951 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 90 transitions, 240 flow [2020-04-18 11:58:16,969 INFO L129 PetriNetUnfolder]: 13/143 cut-off events. [2020-04-18 11:58:16,969 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-04-18 11:58:16,971 INFO L80 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 143 events. 13/143 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 384 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 146. Up to 14 conditions per place. [2020-04-18 11:58:16,977 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 90 transitions, 240 flow [2020-04-18 11:58:16,991 INFO L129 PetriNetUnfolder]: 13/143 cut-off events. [2020-04-18 11:58:16,992 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-04-18 11:58:16,993 INFO L80 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 143 events. 13/143 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 384 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 146. Up to 14 conditions per place. [2020-04-18 11:58:16,999 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5280 [2020-04-18 11:58:17,000 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:58:17,972 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18888 [2020-04-18 11:58:17,973 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2020-04-18 11:58:17,973 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 53 transitions, 166 flow Received shutdown request... [2020-04-18 12:01:32,609 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 12:01:32,613 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 12:01:32,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 12:01:32 BasicIcfg [2020-04-18 12:01:32,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 12:01:32,616 INFO L168 Benchmark]: Toolchain (without parser) took 262689.81 ms. Allocated memory was 146.3 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 102.7 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,621 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.87 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 163.4 MB in the end (delta: -62.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.38 ms. Allocated memory is still 203.4 MB. Free memory was 162.8 MB in the beginning and 160.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,633 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,633 INFO L168 Benchmark]: RCFGBuilder took 521.61 ms. Allocated memory is still 203.4 MB. Free memory was 159.3 MB in the beginning and 134.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,634 INFO L168 Benchmark]: TraceAbstraction took 261425.02 ms. Allocated memory was 203.4 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 133.9 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2020-04-18 12:01:32,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.87 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.7 MB in the beginning and 163.4 MB in the end (delta: -62.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.38 ms. Allocated memory is still 203.4 MB. Free memory was 162.8 MB in the beginning and 160.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.44 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.61 ms. Allocated memory is still 203.4 MB. Free memory was 159.3 MB in the beginning and 134.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261425.02 ms. Allocated memory was 203.4 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 133.9 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 31 ProgramPointsBefore, 11 ProgramPointsAfterwards, 30 TransitionsBefore, 8 TransitionsAfterwards, 220 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 112 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 164 CheckedPairsTotal, 28 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 44 ProgramPointsBefore, 25 ProgramPointsAfterwards, 42 TransitionsBefore, 21 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 342 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1631 CheckedPairsTotal, 24 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 57 ProgramPointsBefore, 36 ProgramPointsAfterwards, 54 TransitionsBefore, 32 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 754 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5364 CheckedPairsTotal, 31 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 70 ProgramPointsBefore, 46 ProgramPointsAfterwards, 66 TransitionsBefore, 41 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 1 ChoiceCompositions, 1024 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 9936 CheckedPairsTotal, 37 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 83 ProgramPointsBefore, 52 ProgramPointsAfterwards, 78 TransitionsBefore, 42 TransitionsAfterwards, 3740 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 1436 VarBasedMoverChecksPositive, 51 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 11500 CheckedPairsTotal, 39 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 96 ProgramPointsBefore, 63 ProgramPointsAfterwards, 90 TransitionsBefore, 53 TransitionsAfterwards, 5280 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 2191 VarBasedMoverChecksPositive, 64 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 18888 CheckedPairsTotal, 46 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 692]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 692). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 63 places, 53 transitions, 166 flow. Already constructed 270233 states. Currently 62503 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 261.1s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 242.3s, HoareTripleCheckerStatistics: 207 SDtfs, 158 SDslu, 89 SDs, 0 SdLazy, 116 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108616occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 22734 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown